If T = {integers} and subset W = {positive integers}, what is W′?

{1, 2, 3, �}

{�−3, −2, −1}

{−3, −2, −1, 0}

{ }

Question

If T = {integers} and subset W = {positive integers}, what is W′? 

 {1, 2, 3, �} 

 {�−3, −2, −1} 

 {−3, −2, −1, 0} 

 { }

anonymous · Answer

like in the last question, marissa explained there that a sub set is, if we have set A and set B and all the part of A show in B as well (B can have other parts as well) then A is a subset of B. 

$$A: {x,y,z} , B: {x,y,z,a,b,c} ==> A \subseteq B $$

in you case the answer is a, although the question is kind of giving you the answer --> "W = {POSITIVE integers}